CHEMISTRY COMMUNITY

404905747

Is there any easy way to identify a strong acid or strong base besides just memorizing them?

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You could find the pH of the hydronium and then subtract that value from 14. This is because the pH and the pOH should add up to 14.

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Just to clarify, then is it only called a chelate if it has an extra ring?

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I think it depends where its located. If it is supposed to be written based on the bond as OH2 then you write it as that and vice versa.

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increasing electronegativity makes the molecule more acidic

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Is he done teaching the material for the test? Or will we learn more of the stuff on the test on Monday? Im wondering this too because in the past he has put questions having to do with the lecture, the day before the test. I have my TA discussion Tuesday so its super early in the week. Mine is on ...

404905747

I do not think we actually have to calculate bone lengths. It is similar to the bond angle concept of just knowing that it is slightly less than 109.5 degrees.

404905747

Is he done teaching the material for the test? Or will we learn more of the stuff on the test on Monday?

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What about homework, if there is no discussion are we just turning in week 8 and 9 after thanksgiving?

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If our discussion is on Tuesday, do we still have it this week?

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I think that shape matters more because the electron geometry is just a way for us to see it on paper, but the shape is the actually position in space. Im not sure about the hybridization part.

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Does this mean that you can determine the shape just by looking at how many lone pairs a molecule has?

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What do you mean by electron distortion?

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Do we have to know how to solve that equation? Did he go over that in lecture?

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can all elements in group 13 have incomplete octet?

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also with ions make sure to write out the ground state configuration first so that you know to remove 4s electrons before 3d.

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yes, you always check formal charge no matter how many bonds.

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I am a little confused as well. I understand how you fill the orbitals and their spin. I just don’t understand why.

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Ionization energy is the amount of energy needed to remove the outermost electron/weakest bound electron

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Do you guys all want to study again some time soon?

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My TA said that the test would be on:
photoelectric effect
De broil wavelength
Heisenburg Uncertainty
Atomic Spectrum
Quantum Numbers

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You can determine the spin based on how you fill the orbital. If the electron is pointing up then it has a +1/2 spin and if it is pointing down it has a -1/2 spin.

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I am pretty sure that the energy levels are s<p<d<f. I think this is because there are less n levels and so there are less electrons and energy at lower orbitals.

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I had the same question and read through the replies but am still a little confused. Can someone maybe rephrase how they got to the answer?

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Thank you very much for the advice! Your words make me enjoy chemistry more, knowing that this course will help me throughout med school.

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Thank you very much! This felt like great practice. Is the phrasing and level of difficult really similar to how our quizzes and tests will be?

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Someone asked this question in my discussion section today and my TA (Liv) said that if it is few decimals off you will still get full credit. As long as it has the right sig figs.

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There is a section (F6) in the book that goes over SI units and I found that helpful. Not sure exactly what we need to know but the book was a good refresher.

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Normally you have to convert to the standard unit of measurement. Like grams and liters etc.

CHEMISTRY COMMUNITY

Search found 29 matches

Re: Acids and Bases

Re: Calculating pH and the pOH

Re: chelate

Re: Naming

Re: Strong acids

Re: Test 3

Re: Bond length

Re: Test 3

Re: Thanksgiving Wednesday Class

Re: Thanksgiving Wednesday Class

Re: Molecular Shape

Re: Molecular Shape

Re: Distortion and Polarization

Re: Dipole Moment Units

Re: EXPANDED OCTET

Re: 3d and 4s

Re: Formal charge

Re: Electron Spin

Re: Ionization energy

Re: study group at Hedrick Hall

Re: Test question

Re: Spin Magnetic Quantum

Re: Energy levels of orbitals?

Re: HW #1.43

Re: Advice from a Medical Student [ENDORSED]

Re: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]

Re: Accepted range of answers

Re: SI Units

Re: Units for the answers